Multilayer capacitor

A multilayer capacitor comprising:

• a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween;
• and
• first and second external electrodes disposed on the body to be connected to the first and second internal electrodes, respectively,
• wherein at least one dielectric layer among the dielectric layers contains BaTiO3 as a main ingredient, and includes a plurality of grains and grain boundaries arranged between adjacent grains,
• at least one grain boundary among the plurality of grain boundaries contains Si in a content of 8.0 to 18.0 wt % and Al and Mg in a total content of 2.0 to 6.0 wt %, based on a total content of oxides in the at least one grain boundary, and
• wherein the at least one grain boundary has a thickness of 1.3 nm or more.